Embedded audio and video

[v3ss0n]

@chrisalley

If the extension is enabled, the syntax should render the content based on the specified file extension, e.g. would render the HTML <video> tag. If the extension is not enabled, the syntax will attempt to render the HTML <img> tag regardless of the specified file extension.

For the extension to be viable we would need a white list of file extensions that would be used to render as the particular content types - image, audio, video, and perhaps other content types.

Good ideas ! for whitelist i suggest whitelsiting html5 compatible formats

Media types and formats for image, audio, and video content - Media...